Fix "Time active" field in transfer list

The "Time active" field was broken, displaying nothing when in
downloading state.
Also change type to int to match the return
types of TorrentHandle::activeTime() & TorrentHandle::seedingTime()

src/gui/transferlistdelegate.cpp

@@ -122,13 +122,13 @@ void TransferListDelegate::paint(QPainter * painter, const QStyleOptionViewItem
         break;
     }
     case TorrentModel::TR_TIME_ELAPSED: {
-        qlonglong elapsedTime = index.data().toLongLong();
-        qlonglong seedingTime = index.data(Qt::UserRole).toLongLong();
-        QString txt;
-        if (seedingTime > 0)
-            txt += tr("%1 (seeded for %2)", "e.g. 4m39s (seeded for 3m10s)")
-                   .arg(Utils::Misc::userFriendlyDuration(elapsedTime))
-                   .arg(Utils::Misc::userFriendlyDuration(seedingTime));
+        const int elapsedTime = index.data().toInt();
+        const int seedingTime = index.data(Qt::UserRole).toInt();
+        const QString txt = (seedingTime > 0)
+            ? tr("%1 (seeded for %2)", "e.g. 4m39s (seeded for 3m10s)")
+                .arg(Utils::Misc::userFriendlyDuration(elapsedTime))
+                .arg(Utils::Misc::userFriendlyDuration(seedingTime))
+            : Utils::Misc::userFriendlyDuration(elapsedTime);
         QItemDelegate::drawDisplay(painter, opt, opt.rect, txt);
         break;
     }